Major Brands BC548B NPN Switch Transistor, TO-92, 500mW, 0.1A, 3 Pin, 4.58 mm H x 3.86 mm W x 4.58 mm L (Pack of 40) : Industrial & Scientific - Amazon.com
BC548B BC548 Fairchild NPN Siliconn Transistor 10 pieces DONT BE FOOLED BY FAKES | eBay
100pcs Bc548b Bc548 To-92 To92 548b Triode Transistor New Original - Integrated Circuits - AliExpress